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Benzimidazole derivatives as selective blockers of persistent sodium current

a technology of sodium current and benzimidazole, which is applied in the direction of heterocyclic compound active ingredients, biocide, drug compositions, etc., can solve the problems of major changes, major pathophysiological conditions, sustained sodium influx into cells, etc., and achieves reduced capsaicin-induced thermal hyperalgesia, reduced initial clinical signs of paralysis, and increased latency to the p2 peak

Active Publication Date: 2015-01-08
ALLERGAN INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about a new compound, calledFormula I, and its pharmaceutically acceptable salt. This compound has the ability to block persistent sodium current without affecting transient current. This makes it useful for treating diseases and conditions that are caused by elevated persistent sodium current, such as pain, ocular and retinal disorders, seizure disorders, and multiple sclerosis. The compound has a specific structure and can be identified by its formula. The patent text also describes the methods for making and using the compound.

Problems solved by technology

A loss of the ability to inactivate results in a sustained influx of sodium into cells.
Research in this area has identified variants of the alpha subunits that result in major changes in channel function and activities, which can ultimately lead to major pathophysiological conditions.

Method used

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  • Benzimidazole derivatives as selective blockers of persistent sodium current
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  • Benzimidazole derivatives as selective blockers of persistent sodium current

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Definitions

[0043]As used above, and throughout this disclosure, the following terms, unless otherwise indicated, shall be understood to have the following meanings:

[0044]“Patient” includes both human and animals.

[0045]“Mammal” means humans and other mammalian animals.

[0046]“Alkyl” means an aliphatic hydrocarbon group which may be straight or branched and comprising about 1 to about 20 carbon atoms in the chain. Preferred alkyl groups contain about 1 to about 12 carbon atoms in the chain. More preferred alkyl groups contain about 1 to about 6 carbon atoms in the chain. Branched means that one or more lower alkyl groups such as methyl, ethyl or propyl, are attached to a linear alkyl chain. “Lower alkyl” means a group having about 1 to about 6 carbon atoms in the chain which may be straight or branched. “Alkyl” may be unsubstituted or optionally substituted by one or more substituents which may be the same or different, each substituent being independently selected from the group consi...

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Abstract

The present invention is directed to a compound of Formula Ior a pharmaceutically acceptable salt thereof; wherein R, R1, R2, R3, R4, m, and n are as defined herein, to pharmaceutical compositions comprising said compound, and to methods of treating diseases or conditions mediated by elevated persistent sodium current, such as an ocular disorder, multiple sclerosis, seizure disorder, and chronic pain.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of U.S. application Ser. No. 13 / 727,860, filed Dec. 27, 2012, which claims the benefit of U.S. Provisional Patent Application Ser. No. 61 / 580,978 filed Dec. 28, 2011, which is hereby incorporated herein by reference in its entirety.FIELD OF THE INVENTION[0002]The present invention is directed to benzimidazole derivative compounds, pharmaceutical compositions comprising the compounds and methods of using the compounds and the pharmaceutical compositions that selectively reduce persistent sodium current in a mammal and in treating diseases or conditions that involve elevated persistent sodium current in a mammal, such as chronic pain, epileptic seizure, and ocular / retinal diseases, as well as other diseases and conditions associated with elevated persistent sodium current.BACKGROUND OF THE INVENTION[0003]Voltage-gated sodium channels, transmembrane proteins that initiate action potentials in nerve, muscle ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C07D235/12C07D403/06C07D401/12C07D235/06
CPCC07D235/12C07D401/12C07D403/06C07D235/06A61P25/00A61P25/08A61P27/02A61P29/00C07D235/08C07D235/14C07D235/20C07D403/12
Inventor EHRING, GEORGE R.CHAO, ELLENNG, HERMANTON, HAULI, JIA CHIANADORANTE, JOSEPH S.GARST, MICHAEL E.RIND, HOWARD B.HANSEN, MARK R.AVEY, JR., ALFRED ARTHURDOLBY, LLOYD JAYESFANDIARI, SHERVINMACKENZIE, VIVIAN R.MARSDEN, JEREMIAH ANDREWMUCHMORE, DAVID CHARLES
Owner ALLERGAN INC
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